Distillation column inherent safety index at preliminary design stage

International Conference on Process Engineering and Advanced Materials 2018

Shariff, Azmi Mohd^1,2 ; Athar, Muhammad^1,2 ; Buang, Azizul^1,2 ; Khan, Muhammad Ishaq^1,2 ; Hermansyah, Heri^3

Center for Advanced Process Safety (CAPS), Universiti Teknologi Petronas, Bandar Seri Iskandar, Perak Darul Ridzuan

32610, Malaysia^1

Chemical Engineering Department, Universiti Teknologi Petronas, Bandar Seri Iskandar, Perak Darul Ridzuan

32610, Malaysia^2

Industrial Bioprocess Engineering Laboratory, Department of Chemical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^3

关键词: Chemical process industry;    Inadequate design;    Indexing methods;    Individual scores;    Inherent safety index;    Inherently safer design;    Preliminary design;    Process condition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/458/1/012047/pdf
DOI  :  10.1088/1757-899X/458/1/012047

来源: IOP

【 摘 要 】

Distillation columns are widely used in many chemical process industries, especially in oil and gas processing. Accidents in the distillation columns have resulted in enormous loss of human lives and assets. Inadequate design of distillation columns is one of the vital reason for the failure, which can be enhanced through inherent safety concept. Therefore, this paper introduces a new indexing method for designing inherently safer distillation columns right from the preliminary design stage. Distillation Column Inherent Safety Index (DCISI) is based on three sub-indices; chemical index, process index and distillation index. These sub-indices are estimated through individual scores by considering various parameters in each category. For the unacceptable score, modification of process conditions is used to enhance safety level of the design. DCISI is estimated for all combination of conditions and lowest DCISI value indicates the inherently safer design of the distillation column.